Safety device for cleaning-machines or rumbles.



No. 876,269. PATENTED JAN. 7, 1908. O. FISH.

SAFETY DEVICE FOR CLEANING MACHINES 0R RUMBLES.

APPLICATION FILED JUNE 17. 1907.

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, G. FISH.

SAFETY DEVICE FOR CLEANING MACHINES 0R RUMBLES.

APPLICATION FILED JUNE 17. 1907.

PATENTED JAN. 7, 1908.

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' mode of operation of rumbles, or cleaning- CHARLES FISH, OF

MUNCIE, INDIANA.

SAFETY DEVICE FOR CLEANING-MACHINES OR RUMBLES.

Specification of Letters Patent.

Patented Jan. '7, 1908.

Application filed tune 17. 1907. Serial No. 379.370-

To all whom it may concern:

Be it known that I, CHARLES FIsH, a citizen of the United States, and aresident of the city of Muneie, Delaware county, Indiana, have inventeda new and useful Safety Device for Cleaning-Machines 0r Rumbles, ofwhich the following is a specification.

In the accepted form of construction and machines for castings commonlyreferred to as rattlers, the rumble is provided on its end with agear-wheel of large diameter and is revolubly mounted in suitablepillowblocks and so arranged and supported on frame standards that oneof said pillovvblocks is movable whereby the rumble may be free to beshifted out of normally true alinement, thus disengaging or throwing outof mesh said large gear-wheel and a smaller gear-wheel secured to ashaft journaled prop' erly adjacent to said rumble and to which shaftthe drivin power is applied. Breakage of the slabs frequently occurswhich permits a casting or castings being carried in the rumble, toproject and impinge on the shaft of the driving gear, which oftenresults in injury to the machine and to the casting or castings as well.

This invention has for its object to provide a device whereby the rumblewill be automatically thrown out of actual engagement with the drivingear, in case of accidental stoppage or undue hindrance of the normalmovement of the rumble, and whereby the rumble may at any time be easilyshifted into or out of normal position by the operator.

Further objects are to provide a device of this kind which will beeconomical of manufacture, reliable and durable.

The objects of my invention are accomplished by the mechanism describedin this specification, illustrated in the accompanying drawin s, andclearly designated in the appended e aims.

In the drawings, similar characters of reference refer to correspondingparts throughout the several views, in which Figure 1 is an end view andFig. 2 is a top plan view of a rumble equipped with my invention. Fig. 3is an end view and Fig. 4 is a top plan view of my improved device complete. Fig. 5 is an end view, and Fig. 6 is a transverse sectional viewof the standard 9 taken on the line 6-6 Fig.

In Figs. 1 and 2 are shown a rumble, or

cleaning-machine of well known form and construction. Mounted on thesubstantial frames 1 are the suitable pillow-blocks 2 and 2 in which arej ournaled the bearings of the box 4. In the similar pillow-blocks 3 arej ournaled the shaft 5 upon which is secured the small gear-wheel 6adapted to mesh with the large gear-wheel 7 suitably secured to the endof the box. The surrounding exterior of the box is composed of slabshaving their ends suitably bolted, as shown, to the endseetions of thebox.

The pillow-bloel 2* is provided with oblong holes in its bottom so thatwhile it is held properly in position by the bolts 2 passedtherethrough, it is free to be moved in the direction of the arrow asshown in Fig. 1, when the disengagement of the gearwheel 7 from thegear-wheel 6 is necessary. The j ournal-bearing in the pillow-block 2 issufficiently loose so that there is no undue strain imposed thcreat.

The essential features of my invention consist of members adapted to beeasily secured to said pillow-blocks 2 and 3, and connecting membersbetween them, and the lever so arranged that by manipulation of saidlever the gear-wheels are caused to be retained and held in position ofengagement, and at the same time, in the event of excessively abnormalstrains being imposed upon the gears, they may separate.

My invention is carried out and embodied in the mechanism describedherein.

9 and 10 designate standards of substantial construction and suitableform, having the base-flanges W and 10.

11 designates oblong holes provided in these base-flanges so that thesestandards may be secured to the pillow-blocks 2 and 3 as shown. Thetransverse distance apart 0f these holes may be varied so that the standards may be readily applied to any ordinary size or style ofpillow-blocks.

12 designates a lever having the stud 13 provided thereon and journaledin a suitable hole therefor in the standard 10, and retained by the nut13. This lever has the shortarm 12. The connecting bar 14 having its oneend turned at a right angle, pivoted in the end of the short-arm 12 andthere retained by the cotter 14, is of suitable length and threaded onits end and secured adjustably by the set-nuts 14 to the swivel 15suitably secured to the standard 9. This swivel 15 is angle-shaped asshown in Fig. 6, and has a stud thereon threaded and adapted to passthrough and be held in position on the standard 9. The purpose of thisswivel or pivotal connection for the connecting-bar will be obvious inthe description hereinafter, of the operation of my invention.

16 designates a set-clip of the form as shown in Fig. 5 and is retainedadjustably on the standard 9 by the set-bolt 16 the vertical leg of theset-clip being slotted so that it may be adjusted to varied positionsvertically. It will be observed in Fig. 4 that the lever 12 is of suchform transversely that when the standards 9 and 10 are in correctalinement the free end of the lever will be normal y at rest in positionon the set-clip 16.

My invention in complete form in readinessfor application to use,appears as shown in Figs. 3 and 1. The approximately correct distanceapart of the standards, for the connection of my invention to thecleaningmachine or rumble, is obtained by the adjustment of the set-nuts14 The standards 9 and 10 are then secured rigidly to the pillow-blocks2 and 3 respectively, then the po sitions of the set-nuts 14 and theset-clip 16 are so adjusted, that when the gear-wheels of the rumble arein mesh, the longitudinal center lines of direction of the connectingbar14 and the lever 12, are substantially the same, the adjustment of theset-clip however being such that the center-line of the free end of thelever will be slightly above that of the connecting-bar, as shownplainly in Fig. 1. The invention thus is in proper form to perform itsfunctions.

If during the operation of the rumble so equipped, a slab should byaccident be broken, or disengaged from its fastenings, and the slab, orcasting or castings which would immediately project from the revolvingboX should impinge upon the shaft 5, or if for any reason the normalrevoluble motion of the box should be hindered, the tendency of thegear-wheels under such abnormal strain imposed thereon would be toseparate or pull apart which strain if unrelieved would result instripping of the gear-wheels or some other breakage of the machine,however with my invention applied as shown, the powerful tensile strainso imposed will cause the short-arm 12 to draw downwardly, therebyimmediately unlocking the standards whereby the pillow-block 2 will movea sufficient distance so that the gear-wheels will become disengaged andthe operation of the rumble will have been terminated. The parts ofmydevice then occupy the positions as shown in dotted lines in Fig. 3. Bymanipulation of the set-clip 16 the normal position to be occupied bythe lever 12 may be varied, to accord properly with reference to thecenters of the shafts of the gear-wheels, also the size or capacity ofthe rumble to which the device is attached, and the amount or gage ofthe pull necessary to be exerted before the short-arm 12 should move.

In large establishments wherein the cleaning of great quantities ofcastings is necessary, a great many rumbles are employed and they aregenerally arranged in a part of the establishment or plant, removed fromother machinery, and after the rumbles are properly loaded they are thenstarted, and caused to be operated for a certain period of time. Owingto the fact that the condition of the inner portions of the slabs cannotalways be known, and that failure of same is common, and that the boltsretaining the slabs frequently shake loose, injury and accidentalstoppage to rumbles are liable to occur at any time. It is verydesirable that the necessity of an employee or employees to attend therumbles, may be dispensed with. By the use of my invention the necessityof care and attention'to the rumbles after the same have been started tooperate, is dispensed with, for, in case of accident as aforesaid therumble affected will be automatically and. speedily renderedinoperative, as hereinbefore described.

By simply the manipulation of the lever 12 by the attendant thepillow-block 2 may be brought to its proper position and the gear-wheelsinto mesh. Thus is obtained a device whereby the manipulation of therumble in the regular course of business or use is greatly facilitated,and whereby the rumble will be caused to automatically be thrown intoinoperative status in event of accident thereto.

WVhat I claim as my invention and desire to secure by Letters Patent,is-

1. A device of the kind described comprising a frame, a fixedpillow-block and a movable pillow block mounted on said frame, gearsjournaled on said pillow-blocks and adapted to mesh with each other,members secured to the said pillowblocks, a bar pivotally connected toone of said members and a lever fulcrumed on the other member andpivotally connected to the said bar, substantially as described.

2. A device of the kind described comprising a frame, a fixedpillow-block and a movable pillow block mounted on said bers secured tothe said pillow-blocks, a bar adjustable in length pivotally connectedto one of said members and a lever 'l ulcrumed on the other member andpivotally connected to the said bar, means to support the free end ofsaid lever in positions varied vertically.

4. A device of the kind described comprising a frame, a fixedpillow-block and a movable pillow block mounted on said frame, gearsjournaled 011 said pillow-blocks and adapted to mesh with each other,members secured to the said pillow-blocks, a bar adjustable in lengthpivotally connected to the member secured to the fixed pillowblock, alever fulcrumed on the member secured to the movable pillow-blockpivotally secured to the said bar, means to sustain the free end of saidlever in positions varied so that the center-line of said lcx 'er may beon a plane common or at an angle to the centerline of the saidconnecting bar.

5. A device of the kind described comprising a frame, a fixedpillow-block and a movable pillow block mounted on said -frame, gearsjournaled on said pillow-blocks and adapted to mesh with each other,menibers secured to the said pillow-blocks, a bar adjustable in lengthpivotally connected to the member secured to the fixed pillowblock alever fulcrumed on the member secured to the movable pillow-blockpivotally secured to the said bar, a device connected to the member thatis secured 011 the fixed pilloW-bl0ck and adapted to support the freeend of said lever in positions varied vertically.

6. A device o1 the kind described comprising a frame, a fixedpillow-block and a movable pillow block mounted on said frame, gearsjournaled on said pillow-blocks and adapted to mesh with each other,members detachably secured to said pillow-blocks, a connecti11g-baradjustable in length and pivotally connected to themember that issecured to the ilixed pillow-block, a lever lulcrumed on the member thatis secured to the movable pillowblocl and. pivotally con nected to saidconnecting-bar, means to vary and maintain the normal position o'l' thelever with reference to the position of the connecting-bar.

7. A device oi" the kind described comprising a frame, a 'lixedpillow-block and a movable pillowblock mounted on said frame, gears journaled on said pillow-blocks and adapted to mesh with each other, astandard adapted to be secured on the fixed pillow-block, a swivelpivotally connected to said standard, a connecting-bar having its endadjustably secured in said swivel, another standard adaptcd to besecured on the movable pillo\v-block, a lever fulcrumed on this lastnamed standard having its end pivotally secured to said connecting-bar,a device connected to said -first-named standard to sustain the freeend. of said lever and adapted to be adjusted and to be maintained invaried positions vertically, substantially as described.

In testimony whereof I have hereunto signed my name to thisspecification in the presence of two subscribing witnesses.

CHARLES FISH.

l/Vitnesses:

RALPH D. McNIoKLE, E'rnEL L. IJISTER.

